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CATALOG OF ORIGINAL DESCRIPTIONS: Hastigerinella jarvisi Cushman 1930

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> H -> Hastigerinella -> Hastigerinella jarvisi
Other pages this level: H. alexanderi, H. bermudezi, H. bizonae, H. caucasica, H. colombiana, H. eocanica, H. eocanica aragonensis, H. frailensis, H. jarvisi, H. moremani, H. rhumbleri, H. riedeli, H. simplex, H. simplicissima, H. subcretacea, H. watersi

Hastigerinella jarvisi

Citation: Hastigerinella jarvisi Cushman 1930
Taxonomic rank: species
Type specimens: Plate 3, figures 8-11
Type sample (& lithostrat): Upper Marl
Type age (chronostrat): Eocene
Type locality: 17¼, miles out on Cunapo Southern road, Trinidad, col­lected by Mr. P. W. Jarvis.
Type repository: Washington; USNM

Linked specimens: USNM-370415 USNM-12567 USNM-12565 USNM-12566

Current identification/main database link: Clavigerinella jarvisi (Cushman 1930)


Original Description

Test with the early chambers slightly trochoid, close coiled and generally globular, later ones becoming much elongate, often 3 or 4 times as long as wide, the ends in some specimens somewhat contracted and with roughened projections, probably the bases of spines, the length of the chambers increasing very rapidly as added; wall finely perforate, smooth except for the ends of the chamber at the base on the ventral side. 

Size:
Diameter up to 0.55 mm.

Etymology:
The species is named in honor of Mr. P. W. Jarvis who has done such extensive collecting of Trinidad foraminifera.

Extra details from original publication
The chambers in this species are relatively much slenderer than in H. eocanica, and the ends of the chambers are often somewhat pointed and spinose. The two species are not found together so far as I have seen.

References:

Coxall, H. K. & Pearson, P. N. (2006). Taxonomy, biostratigraphy, and phylogeny of the Hantkeninidae (Clavigerinella, Hantkenina and Cribrohantkenina). In, Pearson, P. N., Olsson, R. K., Hemleben, C., Huber, B. T. & Berggren, W. A. (eds) Atlas of Eocene Planktonic Foraminifera. Cushman Foundation for Foraminiferal Research, Special Publication . 41(Chap 8): 213-256. gs O

Cushman, J. A. (1930). Fossil species of Hastigerinella. Contributions from the Cushman Laboratory for Foraminiferal Research. 6(1): 17-19. gs

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Hastigerinella jarvisi compiled by the pforams@mikrotax project team viewed: 23-1-2025

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